Rope-claim p



(No Model.)

P. YURKE. ROPE CLAMP.

No. 448,902. Patented Mar.24,1891.

UNITED STATES PATENT OErrcE.

IATRICK YORKE, vOF VVASIIINGTON, PENNSYLVANIA.

.'RoPECLAMP.

SPECIFICATION forming partei Letters Patent No. 448,902, dated March 24, 1891'. v

Application led August 11,

To all whom z' @my concern;A c

Be it known that LPATRICK YoRKE,a resident of Vashington, in the county of Washingtongand State of Pennsylvania, have invented a new and useful Improvement in Rope-Clamps; and `I do hereby declare the following to bea full, clear, -and exact description thereof.

Myinvention relates to Artesian-well-drillingapparatus, and more especially to'the clamps by which the rope is held in the-drilling operation, my invention relating more.-

particularly to clamps fox-wire rope and being an improvement on certain Letters Patent- No. 392,627, granted to XV. O. Mobley November 13,1888. That patent relates to the suspension of the tools from the temper-screw,

- the temper-screw having a swivel at the base thereof, and suspended from said SWiYl a sleeve or collar, in Lwhich the ropeclamp is swiveled, so that the rope may 'be turned in the side thereof, through which the clampwithin the lower swivel without turning the upper' swivel, means being thus provided for the operation of the wire or like rope by twisting or nntwistingthe strands thereof and overcoming the lnecessity of having the loose part of the rope wound around the part thereof extending from the clamps down into the well. In that patenttwo forms of collars for' swiveling the rope-clamp are shown, the one being an open sleeve or collar havinga slot ing-pieces are inserted, and the other being a hinged collar adapted to be opened and closed around the clamping-pieces, which are thus swiveled within the collar. In such con-i struction the clamping-faces were, as will b e seen, free and separate from the collar, and

when the collar was opened there was danger, especially of the smaller piece of the clamp which did not carry the clamping-screw, dropping into the well, the part being small and the ordinary driller being careless, so that there would be liability of such accident,

'which would require the ishin g for the clampin g-piece, and might possibly lead to the abandonment of the well. g

The object of my invention is to provide a swiveling clamp for wire or like rope, in which the clamp'can be turned within the sleeve, having free movement therein, but in which the clamping-pieces are firmly held within 1890. serial No. 36.1.1727. (N9 model.)

the sleeve, so thatv all liability of the loss .of thesame is overcome, while at the Sametime a sleeve or collar can be employed which its entirely around the clamping-pieces and so supports them more securely, and all necessity 'of the cutting away of any part of the clamping-pieces and the weakening thereof is overcome.4

To these ends my invention consists, generally stated, in a sleeve or collar composed -`ot'. two parts hinged together and having an annular dovetailed recess on its inner face and combined therewith clamping-pieces provided with like-shaped dovetailed projections adapted to enter. the dovetailed recess of the sleeve or collar and so be held firmly therein when the sleeve or collar is opened to insert the rope.

be hereinafterset forth and claimed. v

To enable others skilled in the art to make -and use my invention, I will describe the same more fully, referring to the accompanying drawings, in which- Figure 1 is a longitudinal section of the rope-clamp and sleeve, illustrating myinvention. Fig. 2 is a face view showing the collar open, such as in inserting the clamps in the collar; and Fig. 3 is a top View.

Like letters of reference indicate like parts in each figure.

In connection with the apparatusl employ the temper-screw a, at the base of which is the swivel b, this swivel having links c extending down therefrom and the links being connected to hooks d on the sleeve or collar d. The sleeve or collar d in its preferred form is formed of two sem-cylindrical parts e e, hinged, as at d2, and connected at points opposite thereto in any suitable way, suchas by a link e2, fitting over lugs e on the two semi-cylindrical parts of the sleeve. so closed, it is evident that the collar d will entirely encircle the faces which are journaled therein. Formed on the interior of the said collar is the annular dovetailed recess f, this recess being formed half in each part of the collar and receiving like dovetailed lugs or projections on the clamping-pieces.

. The clamp g is formed of the two clamping-pieces g h, the clamping-piece g carrying Then Ioo 7o The particular improvements embodying my invention and desired to be covered will- .extend over the top face of the collar and lie-* ing so supported thereon. The interior faces of the clamping-faces are preferably formed as counterparts of the wire rope, which Ithey are intended to clamp-that is, having spiral recesses corresponding to the strands of the rope and longitudinal depressions corresponding to the wires thereof-so that the clamp, when closed, may take into the strands and wires of the rope and hold the same firmly. Each clamping-piece has also a dovetailed projection k, which preferably extends around the outer face of the same, the dove- .tailedprojections fitting within the dovetailed recess f in the sleeve d, and the two clamping-pieces being thus firmly held within the sleeve or collar by the dovetailed connection formed by the projections 7c and recess f. The dovetailed projections k are, however, free to turn within the annular recess of the sleeve and interfere in no way with the ordi nary operation of the clamp.

In order to open the clamp to insert the rope, the two pieces are turned within the collar until the divisionline of the clamp coincides with the division-line of the collar, in which case, as the dovetail projection of one clamping-piece is entirely inclosed within the part ofthe annular dovetailed recess in the one part of the collar, the clamp may be opened in the ordinary way, the parts e e' ot'` the collar carrying the two parts of the clamp and holding them firmly by means vof such dove-` tailed connections, so that there is no liability whatever of the clamping-pieces dropping out of the collar when the collar is open. Full space, however. for the insertion of the rope is obtained in thisway, and as soon as the rope is inserted the collar may be closed and the piece h forced against the clamping-piece g bythe clamping-screw g2 in the ordinary way.

The two parts of the clamp maybe inserted in the dovetailed recess of the collar by opening the collar, as shown in Fig. 2, and first inserting the clamping-piece 71. and then insertving the clamp-piece g, which turns as its projection is insertedin the dovetailed recess, so thatthe clamping-arm g' may swing around the clamping-piece h. After being so inserted within the collar the two parts cannot be removed except byrst turningback the clamppiece g, carrying the clamping-arm, and consequently in the ordinary operations of the clamp there is no liabilitywhatever of the smaller clamping-piece h dropping out of the collar and passing down into the well.

The clamp is simple in construction and efficient for the purpose, giving the necessary swivel for the rope, below the swivel at -the base of the clampingscrew and providing for the proper drilling with wire rope, though it may of course be employed to advantage in drilling with the ordinary Manila rope.

What I claim as my invention, and desire to secure by Letters Patent, is-

l. vIn apparatus for drilling Artesian wells, the combination of a sleeve or collar composed of two parts hinged together and having an annular dovetailed recess therein, and a clamp formed of two clamping-piecesjournaled within said collar and having dovetailed projections engaging with and turning within the dovetailed recess of the collar, sub stantially as and for the purposes set forth.

2. In apparatus for drilling Artesian wells, the combination of a. sleeve or collar'composed of two parts hinged together and having an annular dovetailed recess therein, a clamp formed of two clamping-pieces journaled within said collar and having dovetailed projections engaging with and turning within the dovetailed recess of said collar, one of said clamping-pieces carrying a clampingarm,and a clamping-screw, substantially as and for the purposes set forth.

In testimony whereof I, the said PATRICK YOR'KEyhave hereunto set my hand.

PATRICK YORKE.

Witnesses:

II. L. GOEHRING, Roar. D. TorrEN. 

